ux:s sidemenu icon rules

public/sass/base/_icons.scss

@@ -180,4 +180,10 @@
   .gicon-alert {
     background-image: url('../img/icons_dark_theme/icon_alert.svg');
   }
-}
+  .gicon-cog {
+    background-image: url('../img/icons_dark_theme/icon_cog.svg');
+  }
+  .gicon-question {
+    background-image: url('../img/icons_dark_theme/icon_question.svg');
+  }
+}